On Tue, 2020-05-19 at 08:56 -0500, Nicholas DiPiazza wrote:
> Yeah I agree Oleg. But I'm at a loss as to why I am able to stop &
> start
> the program and then it starts working again fine.
> 
> There is NTLM authentication involved. Perhaps the auth gets into a
> stale
> state and starts causing 400 errors?
> 

Hmm. Then, client side NTLM state corruption is more likely. The
trouble is there is no longer a single person on the project who has
both capacity and inclination to work on NTLM. 

Does the server support any other authentication schemes?

Oleg



> On Tue, May 19, 2020 at 8:06 AM Oleg Kalnichevski <ol...@apache.org>
> wrote:
> 
> > On Mon, 2020-05-18 at 20:24 -0500, Nicholas DiPiazza wrote:
> > > Hey HTTP client users list!
> > > 
> > > I've got some strange behavior going on and could use some help
> > > sorting it
> > > out.
> > > 
> > > I created a reproducer project of the code that I am using to
> > > access
> > > HTTP
> > > client:
> > > https://github.com/nddipiazza/reproduce-400-errors
> > > 
> > > See the Reproduce400Errors class:
> > > 
> > 
> > 
https://github.com/nddipiazza/reproduce-400-errors/blob/master/src/main/java/Reproduce400Errors.java
> > > 
> > > I use this class to download approximately 9 million documents
> > > from
> > > SharePoint. And for some reason, after about 4 million docs are
> > > downloaded,
> > > it gets stuck in a state where all requests fail with a 400
> > > status
> > > code.
> > > 
> > > The code is pretty simple. Pool of HTTP connections. Nothing
> > > crazy.
> > > 
> > > If I stop and start the program, it will continue just fine.
> > > 
> > > Has anyone ever heard of a situation like this? How can I fix
> > > this
> > > issue?
> > 
> > I strongly suspect this to be a server side issue given the
> > symptoms of
> > the problem.
> > 
> > Oleg
> > 
> > 
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